这个that是不是多余的（make
up for that something missing）下面的内容摘自2017全国卷1的语法填空题：Fat and salt are
very important parts of a diet. They are required to process the food that we
eat, to recover from injury and for several other bodily functions. When fat
and ...
One of the products they have developed is a flowerpot. It may look like other flowerpots. But the container breaks down in the earth withinone to five years. And as it breaks down, it naturally releases nitrogen into the soil. 他们开发的产品之一是花盆，它看起来和普通...
...是was talking 中的was是助动词，他们可以共用一个was吗？At once he was on his feet and moving forward like a swift cat. 句中的was on his feet同样也是实义动词，但was moving 的是助动词。上面两句话均摘自《现代英语语法》赵俊英，1186页。该书认...
...到他的敲门声。(误译：他敲门的时候我正在做饭)(C) I was on the point of telephoning him when his letter arrived. 我正要给他打电话，他的信就来了。(误译：当他的信到达的时候，我正准备给他打电话)作者说：当位于句末的when分句具有此种...
—I'm going to the post office.—_______ you're there, can you get me some stamps?A. As B. While C. Because D. If答案为B. 有的解释说是引导让步状语从句，不对吧？这里的while是当什么时候讲还是既然的意思？两者说法网上都...
But a number of scientist are worried that there has been a dangerous rush to declare cell phones safe,using studies they feel are inadequate and too often weighted toward the wireless industry's intereststhey feel…到interests为止应该是studies的定语从句吧，那为按道理studies在定...
这里的背景是介绍旅游时可以去什么地方，然后一一列举这些地方：time share apartment: accommodation which one owns, say, a 26th part of
and so has the right to stay there
for 2 weeks every year.这里and so是什么用法，后面has为什么没有主语？
各位专家老师好，我提问一个句子：The police, on the strength of what he said to Michaelis, that he “had
a way of finding out”, supposed that...根据他对Michaelis说过的他“有办法查出来”，警察猜测……我分析这个句子里的what是融合性关系代词，...
...may sound downright crazy in light of the evidence, that perhaps marketing is by definition principled.这是剑桥雅思文章的节选，我不太明白为什么by definition可以在这样的位置，请老师们答疑解惑。
...illion acres in all ,
so it will be vital to prioritize areas at greatest risk of fire or drought.问题1: 请教老师，这个about介词短语是作acreage的后置定语吗？书上只是笼统地分析为插入语; 另外，这个最高级greatest前为啥没有the呢？2. The drive to discover...